Given the greater pressure underwater, i.e. at the bottom of the ocean, to survive there youd think that those animals would have stronger/denser bones, but we find that land animals have denser bones to withstand the higher net weight (gravity).
But that seems counter intuitive because...
So friction as a nonconservative force, is path dependent when it comes to how much work is lost from a system right?
What confuses me however is understanding what that means, in terms of energy. So the work done by friction includes the energy that was neeeded to stop an obect (like a braking...
What is the significance of the distance between the plate and being able to make the approximation?
For a single plate, why would the electric field be constant? Because normally, for point charges, the electric field lines are further apart the further yuo get away from the charge, and/or as...
So electric field tells us the force per unit charge that is felt by a test charge at a distance d from a source charge.
So it tells us that the closer the test, or other charge, is to the source charge ,the stronger the interaction, and also that the larger the source charge, the stronger the...
Homework Statement
Two masses attached to opposite ends of a spring. What is the Force felt by each mass if each mass is stretched by Xmeters in opposite directions away from each other.
Homework Equations
F=-kx
The Attempt at a Solution
So my book says the answer is F=k*2x.
Each mass has...
I'm having trouble understanding why 1) Heating a solution more slowly would increase separation in a distillation and why 2) Lowering the pressure above the solution, i.e. with a vacuum, would decrease separation.
Distillation depends on you collecting one component before the second...
Im trying to gain a more conceptual understanding of capacitance.
Capacitance is the ability of a parallel plate capacitor to store charge, and thereby voltage, between its two plates. The more charge the capacitor can store per input voltage, the greater the capacitance.
Hence the...
So Volume Flow Rate (Q) = (P2-P1)/R where R is the total resistance of the system.
R is directly proportional to Length and inversely proportional to surface area, and the inherent resistance (viscosity) of the fluid. But R =nL/r^4. r^4 rather than r^2.
So there has to be another factor...
but then how does the standing wave occur if the reflection always causes destructive interference?
OH Is it that at each point in between nodes the incident and reflected/incoming wave interact differently to different degrees of constructive and destructive, such that at the antinode its...
So a standing wave is one which looks to be standing still at certain harmonic frequencies. At these frequencies, when the wave reflects off the end, it will undergo a phase change of 180 degrees. This creates constructive interference as shown below:
In the case of a wave on a string, since...
I see okay thank you so much that clears up a lot.
So if i had a gas with a vapor pressure above atmospheric pressure, and its Pressure was 760mmHg if pure, then if i added another gas to it, it would still maintain the same pressure, it's just that its mole fraction would change (from 1 to...
But in a system where atmospheric pressure is relevant, wouldn't the total pressure of the mixture have to equal 760mm Hg?
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OH Wow youre completely right. Thank you I think I've almost got it.
So the vapor pressure is not indicative...
This is for "ammonia". The problem says that ammonia is a gas at room temperature. And that this tells us:
"the fact that ammonia is a gas at room temperature tell us that vapor pressure of ammonia must be greater than atmospheric pressure".
I know that for water, when the boiling point is...
I see! That makes a lot more sense.
So it is a common (or maybe just me) misconception that pressure points down, maybe due to water pressure when you imagine being at the bototm of the sea. But the reality is that it doesn't have direction and the force determines the direction.
And the...